The Death Of A Firewall

"By accepting that our internal network isn't much safer than a hostile external network, we've created a more realistic security architecture. Users have outbound access to services on ports that would normally be closed, bringing fewer restrictions on the types of applications we support (Skype, for example). Since our laptops are now secured against attacks on the internal network, they're capable of withstanding attacks when connected to an open wireless network outside the office. We're also no longer worried about opening new ports in the network firewall because servers get secured at their own DMZ."Story